Missions

The hired person will carry out research on the design, the additive manufacturing, the characterization and the optimization of architectured materials aiming at reproducing a complex mechanical behavior. He/she will be part of the GPM2 team at SIMAP (Univ. Grenoble Alpes) under the supervision of Dr. Pierre Lhuissier and Prof. Remy Dendievel. He/she will also work in collaboration with Prof. Eric Maire from the MATEIS laboratory at INSA Lyon.

Activities

The technical framework of the work will be the application of a global methodology for the optimization of architectured materials in order to reproduce a complex mechanical behavior in order to significantly extend the proof of concept of behavior by design [Plancher , 2019][Plancher, 2022]. Advanced methodologies developed by other post-doctoral researchers of the project for each of the main steps of the process will have to be gathered :
• Optimization of architecture by machine learning (developed at CMAP/PIMM)
• Optimization of L-PBF additive manufacturing using in situ micro-tomography characterization [Lhuissier, 2022] (developped at SIMAP)
• Elaboration by additive manufacturing L-PBF
• Conduct in-situ mechanical tests to extract rich data necessary for learning purposes via P-DVC methods [Buljac, 2018] (developed at LMPS) using multi-axial loading system (developed at 3SR) and double tomograph (from MATEIS)

This work will require:
• the design and the L-PBF elaboration of an initial set of architectures,
• the acquisition of in situ micro-tomography L-PBF elaboration of sub-structures,
• the identification of the mechanical behavior of the architectures by combination of in situ multi-axial micro-tomography tests and finite element simulations,
• the training of a machine learning approach for generation of architectures,
• the implementation of in-situ experimental procedures in a lab tomograph,
• the development of innovative full-field measurement techniques, which are guided by the model,
• the establishment of a dialogue between images of the experiment, the full-field measurements and the constitutive model,
• the writing of scientific articles,
• the presentation of results during conferences or seminars (as part of national or international travels).

https://anr.fr/fileadmin/aap/2023/france2030-aap-pepr-diadem-2023-call-text.pdf

subproject: ADAM: Accelerated Design of Architected Materials

References:
[Buljac, 2018]. Buljac, A., Jailin, C., Mendoza, A., Neggers, J., Taillandier-Thomas, T., Bouterf, A., ... & Roux, S. (2018). Digital volume correlation: review of progress and challenges. Experimental Mechanics, 58, 661-708.
[Lhuissier, 2022] Lhuissier, P., Hébrard, L., Bataillon, X. , Lapouge, P., Coste, F., Peyre, P., Boller, E., Blandin, J.-J., Salvo, L. & Martin, G. (2022). Miniature laser powder bed fusion system for in situ synchrotron x-ray micro-computed tomography experiments at the european synchrotron radiation facility. Review of Scientific Instruments, 93(8) :083701.
[Plancher , 2019]. Plancher, E., Héraud, L., Lhuissier, P., Dendievel, R., Fabrègue, D., Blandin, J. J., & Martin, G. (2019). Towards behavior by design: A case study on corrugated architectures. Materials & Design, 166, 107604.
[Plancher , 2021] Plancher, E. , Suard, M. , Dendievel, R. , Blandin, J.-J. , Martin, L. & Lhuissier, P. (2021) Behavior by design made possible by additive manufacturing : The case of a whistle-blower mechanical response. Materials Letters, 282 :128669.

Skills

The required degree is a doctorate in Mechanics, Physics, Materials sciences or related disciplines.
The hired person must have the following skills:
• mechanical characterization
• image processing
• python/matlab programming
A plus would be knowledge in additive manufacturing and in machine learning but it is not necessary.

Work Context

The hired person will be part of the ADAM (Accelerated Design of Architectural Materials) scheme, which is a national multidisciplinary project.

The laboratory of Science and Engineering of Materials and Processes (SIMAP) is a research unit under the affiliation of Univ. Grenoble Alpes, Grenoble INP and CNRS. It is dedicated to the relationship between materials, processes and properties. Among these different areas of expertise, the laboratory is recognized for its work on additive manufacturing of metallic materials, on lattice structures and behavior by design, and for in situ micro and nano tomography characterization.

The laboratory of Engineering and Science of Ma terials (MATEIS) is also dedicated to the relationship between materials, processes and properties. The MATEIS laboratory recently acquired a specific high energy lab tomograph with two sources at 90°.

The position is located in a sector under the protection of scientific and technical potential (PPST), and therefore requires, in accordance with the regulations, that your arrival is authorized by the competent authority of the MESR.

Additional Information

https://anr.fr/fileadmin/aap/2023/france2030-aap-pepr-diadem-2023-call-text.pdf

subproject: ADAM: Accelerated Design of Architected Materials

References:
[Buljac, 2018]. Buljac, A., Jailin, C., Mendoza, A., Neggers, J., Taillandier-Thomas, T., Bouterf, A., ... & Roux, S. (2018). Digital volume correlation: review of progress and challenges. Experimental Mechanics, 58, 661-708.
[Lhuissier, 2022] Lhuissier, P., Hébrard, L., Bataillon, X. , Lapouge, P., Coste, F., Peyre, P., Boller, E., Blandin, J.-J., Salvo, L. & Martin, G. (2022). Miniature laser powder bed fusion system for in situ synchrotron x-ray micro-computed tomography experiments at the european synchrotron radiation facility. Review of Scientific Instruments, 93(8) :083701.
[Plancher , 2019]. Plancher, E., Héraud, L., Lhuissier, P., Dendievel, R., Fabrègue, D., Blandin, J. J., & Martin, G. (2019). Towards behavior by design: A case study on corrugated architectures. Materials & Design, 166, 107604.
[Plancher , 2021] Plancher, E. , Suard, M. , Dendievel, R. , Blandin, J.-J. , Martin, L. & Lhuissier, P. (2021) Behavior by design made possible by additive manufacturing : The case of a whistle-blower mechanical response. Materials Letters, 282 :128669.